English verb conjugation
SHOULD FIRE

Regular verb: fire - fired - fired

Affirmation

Simple form	V-ing form
I'd fire you'd fire she'd fire we'd fire you'd fire they'd fire	I'd be firing you'd be firing she'd be firing we'd be firing you'd be firing they'd be firing
Perfect	V-ing perfect
I should've fired you should've fired she should've fired we should've fired you should've fired they should've fired	I should've been firing you should've been firing she should've been firing we should've been firing you should've been firing they should've been firing

Negation

Simple form	V-ing form
I shouldn't fire you shouldn't fire she shouldn't fire we shouldn't fire you shouldn't fire they shouldn't fire	I shouldn't be firing you shouldn't be firing she shouldn't be firing we shouldn't be firing you shouldn't be firing they shouldn't be firing
Perfect	V-ing perfect
I shouldn't have fired you shouldn't have fired she shouldn't have fired we shouldn't have fired you shouldn't have fired they shouldn't have fired	I shouldn't have been firing you shouldn't have been firing she shouldn't have been firing we shouldn't have been firing you shouldn't have been firing they shouldn't have been firing

Interrogative form

Simple form	V-ing form
should I fire? should you fire? should she fire? should we fire? should you fire? should they fire?	should I be firing? should you be firing? should she be firing? should we be firing? should you be firing? should they be firing?
Perfect	V-ing perfect
should I have fired? should you have fired? should she have fired? should we have fired? should you have fired? should they have fired?	should I have been firing? should you have been firing? should she have been firing? should we have been firing? should you have been firing? should they have been firing?

Interro-negative form

Simple form	V-ing form
shouldn't I fire? shouldn't you fire? shouldn't she fire? shouldn't we fire? shouldn't you fire? shouldn't they fire?	shouldn't I be firing? shouldn't you be firing? shouldn't she be firing? shouldn't we be firing? shouldn't you be firing? shouldn't they be firing?
Perfect	V-ing perfect
shouldn't I have fired? shouldn't you have fired? shouldn't she have fired? shouldn't we have fired? shouldn't you have fired? shouldn't they have fired?	shouldn't I have been firing? shouldn't you have been firing? shouldn't she have been firing? shouldn't we have been firing? shouldn't you have been firing? shouldn't they have been firing?